'Doctor Who' Star David Tennant to Marry Time Lord's Daughter

In a move that will have them weeping in the aisles, it's been announced that former 'Doctor Who' star David Tennant is getting married. And, according to The Daily Mail, he's marrying ... his daughter.

Yes, in a strange way of keeping it all in the 'Doctor Who' family, Tennant's announced his engagement to actress Georgia Moffett. 'Who' fans will remember her from a guest spot on a 2008 episode ('The Doctor's Daughter') in which she played Tennant's feisty onscreen daughter Jenny.

And that's not the only 'Who' connection: Georgia's dad is none other than actor Peter Davison, who also used to be Doctor Who. He played the fifth Doctor from 1981-4 and was last seen in the role in 2007 when he appeared with the tenth Doctor -- a.k.a. David Tennant -- in a charity episode on British TV.

Tennant and Moffett also worked together on a short-lived 'Doctor Who' spin-off, the animated series 'Doctor Who: Dreamland.'

Tennant's talked in the past about how he was a huge fan of Davison's when he was growing up, and that Davison was his favorite Doctor. In return, Davison said that Tennant's "a genuinely nice guy," and said he's "delighted" by the match. Perhaps, in time, Tennant and Moffett will produce 'Doctor Who: The Next Generation'.

Note to sci-fi fans: Moffett's mom, US actress Sandra Dickinson, played Trillian in the BBC TV version of 'The Hitch Hiker's Guide to the Galaxy' in the early 1980s. And, in the 1990s she played Maggie in the 'Doctor Who' radio spin-off series, 'The Ghosts of N-Space,' in which Jon Pertwee reprised his role as the third Doctor.